126. Double pain sensation that is occasionally felt following painful stimulation of the skin isdue to: (a) Application of two painful stimuli simultaneously at two different sites, (b) Perception of […]
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DBT BET JRF 2020 Previous Year Questions and Video solutions
Understanding the Commercial Production of Dextran: The Role of Microorganisms
Which of the following microorganism is used for commercial production of dextran? 1. Baciluspolymyxa 2. Streptomyces olivaceus 3. Leuconostocmesenteroides 4. Bacillus thuringiensis Detailed Explanation: Correct Answer: 3. Leuconostoc mesenteroides What […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Sickle Cell Anemia: A Point Mutation in the Coding Region
125. Which one of the following diseases in caused due to a point mutation in the coding region of the associated gene? (a)Hemolyticanemia (b) Sickle cell anemia (c) b-thalassemia (d) […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Protein A: Its Role and Extraction from Staphylococcus aureus
124. Protein A, which has strong affinity for Fc region of immunoglobulin, is extracted from: (a) Saccharomyces cerevisae, (b) Staphlyococcuspyogenes, (c) Staphylococcus aureus, (d) Staphylococcus sanjuis Understanding Protein A: Its […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Understanding Vaccines: Attenuated vs. Inactivated Pathogens
All the vaccines mentioined below are attenuated or inactivated whole pathogen except 1. oral polio vaccine 2. Hepatits A vaccine 3. rotavirus vaccine 4. Tetanus vaccine Detailed Explanation: Correct […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Understanding the Structural Comparison Between Hemoglobin and Myoglobin
The comparison of the structures of haemoglobin and myoglobin shows that they have 1. different primary structure butsimmilar tertiary structure 2. similar primary structure but different tertiary structure 3. different […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Treating Parkinson’s Disease with Dopamine-Producing Neurons from Stem Cells
123. Which one of the following diseases can be treated with dopamine producing neuronsgenerated from stem cells? (a) Alzheimer’s disease, (b) Amyotrophic lateral sclerosis, (c) Brain tumor, (d) Parkinson’s disease […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Pathogenicity Islands: Key to Bacterial Virulence
122. Which statement is TRUE for pathogenicity islands? (a) These are large segments of bacterial genome encoding virulence factors, (b) They coordinate gene expression to make the biofilm, (c) They […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Understanding Agent Orange: A Hazardous Herbicide and Its Environmental Impact
What is agent Orange? 1. hazardous chemical used in luminous paints 2. biodegradable insecticide 3. herbicide containing dioxin 4. color used in fluorescent lamps Detailed Explanation: Correct Answer:3. herbicide containing […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Kuru Disease: The Role of Prions in Human Health
121. Kuru disease in human is caused by: (a) Bacteria, (b) Mycoplasma, (c) Prions, (d) Virus Introduction Kuru disease is a rare but fascinating and terrifying neurological disorder that has […]
